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A capacitor is connected to a battery that produces an emf. These two components, the capacitor...

A capacitor is connected to a battery that produces an emf. These two components, the capacitor and the battery, are the only ones in the circuit. The capacitance is variable in such a way as to keep the current, that goes through it, constant. If the capacitor wasn’t variable the current would change. Find the power given by the battery, and compare it with the time-rate of change of the energy stored in the capacitor. Explain why these tow powers are the same if they are the same and why these two powers are different if they are different. (Problem was provided with no numbers)

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